Rolling-mill.



No. 65,740. Patented lune l2, I900. A ALLAGNIER.

ROLLING MILL. (Application fil ed Apr. 21, 1899.) (No Model.) 2 Sheets-Sheet l.

WWW M L m No. 65|,740 I Patented June 12, I900. A. ALLAGNIER.

ROLLING mLL.

(Application filed Apr. 21, 1899.) (No Model.) 2 sheets-sheet 2.

m: uonms Perms c0. PHDTD-LITHQ. msumumu. o. c.

- To all whom it may concern.-

' embodying my invention.

UNITED STATES" PATENT; OFFICE.

ALPHONSF ALLAGNIER, OF ALF ORTVILLE, FRANCE.

ROLLING-MILL.

SPECIFICATION forming part of Letters Patent No. 651,740 dated June 12 1900.

Application filed April 21, 1 8 9 9- Be it known that I, ALPHONSE ALLAGNIER, a citizen of the Republic of France, and a resident of Alfortville, Seine, in the Republic of France, have invented certain new and useful Improvements in the Manufacture of Wheel-Rims and the Like, of which the following is a specification.

My invention relates to a rolling or laminating machine for manufacturing wheel-rims and similar articles which are rolled or laminated circularly and withou.twelding,whether of iron, steel, or other metal capable of being laminated.

The invention consists, briefly stated, of a system of racks, gears, and endless screws, enabling one to quickly move the rolls or laminating-cylinders toward or away from each other before or after the introduction of the article to be laminated. The mechanism provides for producing a medium pressure upon the work or a slow heavy pressure, as may be desired.

In the drawings, Figure l is a front elevation, and Fig. 2 is a plan view, of a machine In this machine the axles or shafts a a of the rolls a: and g respectively, are driven simultaneously by the gearing b b and are located inside of the boxes 7c is, by which the upper shaft is guidedin its movements toward and away from the lower shaft. The rolls are suitably shaped to efiect upon a strip of metal the desired result in the way of stretching, thinning, compressing, and shaping, so as to produce a wheel-tire, for instance.

In order to allow the introduction of the endless metal strip between the rolls, the upper roll 00 is movable vertically, its shaft a being held suspended in bearings c by means of two racks j j, which slide within the boxes 70 k. The racks are engaged by toothed sectors Z Z at the ends of levers Z Z, which are fulcrumed at the points (1 d, and are provided at their opposite ends with toothed sectors Z Z Meshing with these last-named sectors are two pinions m m, secured upon the shaft 92, which is provided with a hand-wheel o, the object of which is to enable the racks and the upper roll to be quickly raised in a manner apparent upon inspection. On the shaft n is also secured a wheel p, provided with heli- Serial No. 713,845. (No model.)

coidal teeth. 7 Adjacent thereto is an endless screw or worm q, whose shaft is hinged at one end, as at q and can be rotated by a handwheel 1". The hinging of the shaft q is to permit the worm to be disengaged from the helicoidal gear 19 when it is desired to operate the shaft it quickly by means of the handwheel 0. The worm then takes the position shown by the dotted lines g 4".

At the right and left of the laminating-rolls bending-rollers s s are arranged, mounted upon movable nuts 2. t, which can be simultaneously moved away from or toward each other by means of the right and left hand screw u, operated by a hand-wheel o.

The lower roll y simply rotates in its bear ings without vertical movement.

In operation I make an annular strip of metal, by any well-known means, of any suitable shape or weight, and I heat this to a white heat. The upper roll having been raised, I insert the lower portion of the strip between the rolls, as shown in Fig. l in dotted lines. By means of the hand-wheel 0 the upper roll is then lowered quickly upon the inside of the strip. The rollers s s are set at the proper distance apart to give the desired curvature to the rim or other work,'and the rolls are started. When required, a slow pressure can be brought upon the strip by means of the worm g, which will slowly and powerfully rotate the shaft 02 and force the racks and the upper roll downward. After the rolling has been finished the screw q is lifted out of engagement with the wheel 19, and the hand-wheel 0 is operated in order to quickly raise the roll 00 and liberate'the work, which can then be removed and another strip inserted.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-- 1. A metal-rolling machine, comprising a roll journaled in stationary bearings, a roll journaled in bearings movable Vertically away from said stationary roll, an upright rack connected with each of the movable bearings, levers having two sector gears, one meshing with the rack, a pinion meshing with each of the other sector-gears, a worm-gear on the shaft of the pinions, a worm for actu ating the worm-gear, and means for moving the worm into and outof mesh with the worm gear.

2. A--meta1-ro11ing machine, comprising a; roll journaled in stationary bearings, a roll ward and away from said stationary roll, an

upright rack eonneetedwith said movableYApril; I899;

bearing, a lever having a long and a short arm each provided with sector-gears,the latter IO meshing with the rack, a pinion meshing with the other sector-gear, a helicoidal gear on the 'helicoidal gear, and a worm s'h'aft hinged at one end and carrying a hand-Wheehat the -other. l5 5 journaled in bearings vertically movable toshaft of the pinion, a worm meshing with said In testimony that I claim the foregoing I have hereunto set my hand this 7th day of ALP'Ho'Ns'E ALLAGNIER. SVitnesse-s:

I EMILE OoUoHoUD,

EDWARD P. MAOLEAN. 

